Lately whenever I download a file i.e. aircraft or panel etc. I cannot delete the file from my computer. Meaning I used to move it from the folder onto my desktop and it would usually copy it onto the desktop and leave the original in the folder and I would then delete the folder. Now when I right click on the file it does not give me the option to delete. I've now been just closing the box and who knows where it goes (where does it go BTW?). I'm probably wasting space on my computer. Any ideas? Oh and I think this has been happening since I upgraded my Firefox. It could be just a coincidence.